EP 1124240 A2 20010816 - Vacuum switch
Title (en)
Vacuum switch
Title (de)
Vakuumschalter
Title (fr)
Interrupteur à vide
Publication
Application
Priority
JP 2000029971 A 20000208
Abstract (en)
A third electrode (8A) is soldered, via a support fitting (9) onto the inner surface of a support part (1a) which projects into the intermediate part of the inner surface of an insulation tube (1A). An arc generated between the fixed-side contact (5A) and the movable-side contact (5B) when the switch is opened is led from the outer periphery of the fixed-side contact (5A) via the third electrode (8A) to the movable-side contact (5B), in a so-called two-point switch, and the dielectric breakdown probability is thus reduced, particularly at low voltages. The third electrode may have its outer periphery exposed from the insulation tube and be used as one electrode when conditioning is carried out. By the use of this structure, the present invention is capable of meeting the demands for environmental protection and insulation reliability. <IMAGE>
IPC 1-7
IPC 8 full level
H01H 33/66 (2006.01); H01H 33/662 (2006.01); H01H 31/00 (2006.01)
CPC (source: EP US)
H01H 33/66261 (2013.01 - EP US); H01H 31/003 (2013.01 - EP US); H01H 2033/566 (2013.01 - EP US); H01H 2033/66276 (2013.01 - EP US); H01H 2033/66284 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR
DOCDB simple family (publication)
EP 1124240 A2 20010816; EP 1124240 A3 20020320; CN 1180448 C 20041215; CN 1308355 A 20010815; JP 2001222935 A 20010817; US 2001035397 A1 20011101; US 6476338 B2 20021105
DOCDB simple family (application)
EP 01102987 A 20010208; CN 01102962 A 20010208; JP 2000029971 A 20000208; US 77888801 A 20010208